June 2020 - Page 9 of 66

How To Install WordPress on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Install WordPress on CentOS 7

WordPress is a free and open source website and blogging tool that uses PHP and MySQL, and is a great choice for getting a website up and running quickly and easily. In this guide, we will demonstrate how to get a WordPress instance set up with an Apache web server on CentOS 7.

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Ubuntu 18.04 — db5.3 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — db5.3 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4004-1 Related CVEs: CVE-2019-8457 Upstream summary: It was discovered that Berkeley DB incorrectly handled certain inputs. An attacker could possibly use this issue to read sensitive information. Table of contents […]

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How To Install Ruby on Rails with RVM on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Ruby on Rails with RVM on Ubuntu 18.04

This tutorial will take you through the Ruby and Rails installation process and set up via RVM. The command-line tool RVM will let you manage and work with multiple Ruby environments and allow you to switch between them. The project repository is located in a git repository.

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How To Install Graylog2 And Centralize Logs On Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Graylog2 And Centralize Logs On Ubuntu 14.04

In this tutorial, we will cover the installation of Graylog2 (v0.20.2), and configure it to gather the syslogs of our systems in a centralized location. Graylog2 is a powerful log management and analysis tool that has many use cases, from monitoring SSH logins and unusual activity to debugging applications. It is based on Elasticsearch, Java, MongoDB, and Scala.

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How To Enable SFTP Without Shell Access on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Enable SFTP Without Shell Access on Ubuntu 20.04

In a standard configuration, the SSH server grants file transfer access and terminal shell access to all users with an account on the system. In this tutorial, we’ll set up the SSH daemon to limit SFTP access to one directory with no SSH access allowed on per user basis on an Ubuntu 20.04 server.

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How to Install and Use Skopeo for Container Image Management on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install and Use Skopeo for Container Image Management on RHEL 8

Skopeo is a command-line tool for working with container images and registries without requiring a running container daemon. On RHEL 8 it is available directly from the default repositories, making it one of the easiest container tools to install and use. Unlike Docker CLI, Skopeo can inspect, copy, sync, and delete images across registries without […]

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openSUSE Tumbleweed — pia — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — pia — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0784-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-13696 Upstream summary: An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() in v4l-conf.c does not perform sufficient checks to prevent an […]

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Common Problems 121004

Debian 10 – unattended-upgrades lock prevents manual apt operations

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Debian 10 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]

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